11Introduction to centrifugal pumps 12Internal flow in centrifugal pumps 121Numerical analysis on the instability of internal flow in centrifugal pumps 122Characterization of the instability of internal flow in centrifugal pumps 123Experiments on unstable flow in centrifugal pumps 124Correlation of internal flow and performance of centrifugal pumps 125Effect of rotation speed on internal flow in highspeed centrifugal pumps 126Effect of rotorstator interaction on internal flow in highspeed centrifugal pumps 13Cavitating flow and inducers 131Cavitation model and numerical methods 132Evolution patterns of bubbles in inducers under cavitation state 133Influence of incoming flow with gas on the development of cavitation in inducers 134Cavitation characteristics of lowtemperature medium in inducers 135Experiments on cavitation in centrifugal pumps 14Governing equations and turbulence models 141RANS models 142LES model 143RANS/LES hybrid models 144Cavitation models Chapter 2Turbulence Flow Simulations and Model Improvements 21RANS models
211Improvement based on the SST kω turbulence model 212PR correction based on the kω turbulence model 213Improvement of turbulence model considering joint effect of rotation and curvature
Numerical Analysis on Internal Flow in Centrifugal Pumps and Its Applications
Contents
22Large eddy simulation 221Helicity correction of SGS 222Large eddy simulation analysis based on the helic